diff options
| author | Philip Chen <philipchen@google.com> | 2018-08-16 11:21:51 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-08-17 11:18:10 -0700 |
| commit | f39214def22517df6e51bed5770185f4eeef1a5f (patch) | |
| tree | d4e5870e89029b7cbbaba558e6dd4182223b2e83 | |
| parent | 9f416261999e120ca16a7bdcc5a508aa1452de49 (diff) | |
| download | chrome-ec-f39214def22517df6e51bed5770185f4eeef1a5f.tar.gz | |
cheza: Support battery cutoff
BRANCH=none
BUG=b:112611441
TEST=verified on Cheza rev1, battery enters ship mode through
'cutoff' ec command and then wakes up through AC attach
Change-Id: I1cd2083d3f01da3f60af312d5af9af0d3bab15df
Signed-off-by: Philip Chen <philipchen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1178477
Commit-Ready: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Alexandru M Stan <amstan@chromium.org>
| -rw-r--r-- | board/cheza/battery.c | 18 | ||||
| -rw-r--r-- | board/cheza/board.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/board/cheza/battery.c b/board/cheza/battery.c index cc302a3e1a..69b4eff28a 100644 --- a/board/cheza/battery.c +++ b/board/cheza/battery.c @@ -6,6 +6,11 @@ */ #include "battery.h" +#include "battery_smart.h" + +/* Shutdown mode parameter to write to manufacturer access register */ +#define SB_SHIP_MODE_REG SB_MANUFACTURER_ACCESS +#define SB_SHUTDOWN_DATA 0x0010 /* Battery info for rev-0 */ static const struct battery_info info = { @@ -26,3 +31,16 @@ const struct battery_info *battery_get_info(void) { return &info; } + +int board_cut_off_battery(void) +{ + int rv; + + /* Ship mode command must be sent twice to take effect */ + rv = sb_write(SB_SHIP_MODE_REG, SB_SHUTDOWN_DATA); + + if (rv != EC_SUCCESS) + return rv; + + return sb_write(SB_SHIP_MODE_REG, SB_SHUTDOWN_DATA); +} diff --git a/board/cheza/board.h b/board/cheza/board.h index 811dfba33a..9ab1fef92c 100644 --- a/board/cheza/board.h +++ b/board/cheza/board.h @@ -55,6 +55,7 @@ #define CONFIG_EXTPOWER_GPIO /* Battery */ +#define CONFIG_BATTERY_CUT_OFF #define CONFIG_BATTERY_PRESENT_GPIO GPIO_BATT_PRES_ODL #define CONFIG_BATTERY_SMART |